/* ============================================
   Reset 21 Días — Design System
   Inspirado en la línea Dr Channelo
   ============================================ */

:root{
  --cream:#F2EBDF;
  --cream-2:#E8DFCF;
  --bone:#FAF6EE;
  --bone-2:#F5EFE3;
  --terracotta:#B5532C;
  --terracotta-soft:#D87A4F;
  --terracotta-deep:#8E3D1E;
  --sage:#6B7A5A;
  --sage-deep:#4A5640;
  --sage-soft:#A8B299;
  --ink:#1F1A12;
  --ink-soft:#3D362A;
  --muted:#6E6555;
  --muted-2:#9A8F7C;
  --line:#D9CFB9;
  --line-soft:#E8DFCF;
  --gold:#C9A961;
  --danger:#B5392C;
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{overflow-x:hidden}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Manrope',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--cream);
  color:var(--ink);
  line-height:1.55;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
.serif{font-family:'Fraunces',Georgia,serif;font-optical-sizing:auto}

/* ============ APP SHELL ============ */
.app{
  max-width:480px;
  margin:0 auto;
  background:var(--bone);
  min-height:100vh;
  position:relative;
  box-shadow:0 0 60px -10px rgba(31,26,18,0.1);
}
@media(min-width:640px){
  body{padding:24px 0}
  .app{border-radius:24px;overflow:hidden;min-height:calc(100vh - 48px)}
}
.main{padding:24px 20px 40px}

/* ============ HEADER ============ */
.header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(250,246,238,0.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
  padding-top:env(safe-area-inset-top);
}
.header-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 20px;
}
.brand{
  font-family:'Fraunces',serif;
  font-weight:400;
  font-style:italic;
  font-size:18px;
  color:var(--ink);
  letter-spacing:-0.01em;
}
.brand-tag{
  font-family:'Manrope',sans-serif;
  font-style:normal;
  font-size:9px;
  letter-spacing:0.3em;
  text-transform:uppercase;
  color:var(--terracotta);
  margin-left:8px;
  font-weight:600;
}
.header-right{
  font-size:12px;
  color:var(--muted);
  font-weight:500;
  display:flex;
  align-items:center;
  gap:8px;
}
.header-user-dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--sage);
}

/* ============ TYPOGRAPHY ============ */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:10px;
  letter-spacing:0.3em;
  text-transform:uppercase;
  color:var(--terracotta);
  font-weight:600;
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:24px;height:1px;
  background:var(--terracotta);
}
.eyebrow.light{color:var(--terracotta-soft)}
.eyebrow.light::before{background:var(--terracotta-soft)}

h1.page-title{
  font-family:'Fraunces',serif;
  font-weight:300;
  font-size:40px;
  line-height:1;
  letter-spacing:-0.025em;
  color:var(--ink);
  margin-bottom:14px;
}
h1.page-title em{font-style:italic;color:var(--terracotta);font-weight:400}
.page-lead{
  font-family:'Fraunces',serif;
  font-style:italic;
  font-weight:300;
  font-size:17px;
  line-height:1.45;
  color:var(--muted);
  margin-bottom:28px;
}

h2.section-title{
  font-family:'Fraunces',serif;
  font-weight:400;
  font-size:24px;
  line-height:1.15;
  letter-spacing:-0.015em;
  color:var(--ink);
  margin-bottom:16px;
}

/* ============ HERO (dark) ============ */
.hero-dark{
  background:linear-gradient(170deg,#1F1A12 0%,#2C251A 70%,#3D2818 100%);
  color:var(--bone);
  margin:-24px -20px 28px;
  padding:48px 24px 56px;
  position:relative;
  overflow:hidden;
}
.hero-dark::before{
  content:"";
  position:absolute;
  width:400px;height:400px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(181,83,44,0.4) 0%,transparent 70%);
  top:-140px;right:-100px;
  filter:blur(40px);
}
.hero-dark::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(circle at 1px 1px,rgba(245,239,230,0.06) 1px,transparent 0);
  background-size:3px 3px;
  pointer-events:none;
}
.hero-content{position:relative;z-index:2}
.hero-title{
  font-family:'Fraunces',serif;
  font-weight:300;
  font-size:44px;
  line-height:1;
  letter-spacing:-0.025em;
  margin-bottom:16px;
  color:var(--bone);
}
.hero-title em{font-style:italic;color:var(--terracotta-soft);font-weight:400}
.hero-sub{
  font-family:'Fraunces',serif;
  font-style:italic;
  font-weight:300;
  font-size:17px;
  line-height:1.4;
  color:rgba(250,246,238,0.85);
  max-width:90%;
}

/* ============ BUTTONS ============ */
.btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  width:100%;
  padding:18px 24px;
  font-family:'Manrope',sans-serif;
  font-size:13px;
  font-weight:700;
  letter-spacing:0.15em;
  text-transform:uppercase;
  border-radius:100px;
  border:none;
  cursor:pointer;
  text-decoration:none;
  transition:all 0.2s;
  -webkit-appearance:none;
}
.btn-primary{background:var(--ink);color:var(--bone)}
.btn-primary:active{transform:scale(0.98);background:var(--terracotta)}
.btn-secondary{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost{
  background:transparent;
  color:var(--muted);
  font-size:12px;
  text-decoration:underline;
  letter-spacing:0.05em;
  text-transform:none;
  padding:8px;
  font-weight:500;
  border:none;
}

/* ============ FORM ============ */
.form-field{margin-bottom:16px}
.form-label{
  display:block;
  font-size:11px;
  font-weight:700;
  letter-spacing:0.2em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:8px;
}
.form-input, .form-select{
  width:100%;
  background:var(--bone);
  border:1.5px solid var(--line);
  color:var(--ink);
  padding:16px 16px;
  border-radius:14px;
  font-family:'Manrope',sans-serif;
  font-size:16px;
  font-weight:500;
  outline:none;
  transition:border-color 0.2s;
  -webkit-appearance:none;
  appearance:none;
}
.form-input:focus, .form-select:focus{border-color:var(--terracotta);background:var(--bone-2)}
.form-input::placeholder{color:var(--muted-2);font-weight:400}
.form-select{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3e%3cpath d='M3 4.5L6 7.5L9 4.5' stroke='%236E6555' stroke-width='1.8' stroke-linecap='round'/%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 18px center;padding-right:44px}

.form-error{
  font-size:12px;
  color:var(--danger);
  margin-top:8px;
  padding-left:4px;
  display:none;
}
.form-error.show{display:block}

.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}

/* ============ CARD ============ */
.card{
  background:var(--bone);
  border:1px solid var(--line-soft);
  border-radius:16px;
  padding:22px 20px;
  margin-bottom:14px;
}
.card-dark{
  background:var(--ink);
  color:var(--bone);
  border-radius:18px;
  padding:24px;
  position:relative;
  overflow:hidden;
}
.card-dark::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:4px;height:100%;
  background:var(--terracotta);
}

/* ============ BADGE ============ */
.badge{
  display:inline-block;
  font-size:9px;
  font-weight:700;
  letter-spacing:0.25em;
  text-transform:uppercase;
  color:var(--terracotta);
  background:rgba(181,83,44,0.1);
  padding:5px 10px;
  border-radius:100px;
}
.badge-sage{color:var(--sage-deep);background:rgba(107,122,90,0.15)}
.badge-dark{color:var(--bone);background:var(--ink)}

/* ============ LOADER ============ */
.spinner{
  width:16px;height:16px;
  border:2px solid rgba(250,246,238,0.3);
  border-top-color:var(--bone);
  border-radius:50%;
  animation:spin 0.7s linear infinite;
  display:inline-block;
}
@keyframes spin{to{transform:rotate(360deg)}}

.loading-screen{
  min-height:60vh;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:14px;
  color:var(--muted);
}
.loading-screen .spinner{
  width:32px;height:32px;
  border-color:var(--line);
  border-top-color:var(--terracotta);
}

/* ============ UTIL ============ */
.text-muted{color:var(--muted)}
.text-center{text-align:center}
.mt-8{margin-top:8px}
.mt-16{margin-top:16px}
.mt-24{margin-top:24px}
.mb-16{margin-bottom:16px}
.mb-24{margin-bottom:24px}

/* ============ SCREENS ============ */
.screen{display:none}
.screen.active{display:block;animation:fadeIn 0.35s ease}
@keyframes fadeIn{
  from{opacity:0;transform:translateY(6px)}
  to{opacity:1;transform:translateY(0)}
}